Resubmissions

27-12-2024 17:46

241227-wcf2haxna1 10

26-12-2024 23:41

241226-3pykmsvnhx 10

Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26-12-2024 23:41

General

  • Target

    3a8311c1bffc4aa452ac99de43e4c52f33749385cb788ab783e8efd35306ba54.exe

  • Size

    144KB

  • MD5

    9e092ddaae5a606aa7562aefa6d19193

  • SHA1

    f89629fc9325aa4e18563b9fb37d9b01e404e954

  • SHA256

    3a8311c1bffc4aa452ac99de43e4c52f33749385cb788ab783e8efd35306ba54

  • SHA512

    477a5cace00bb9fe1322f80f73b4f55da96ca8b43fbb735853568c406358ea47d68f575eadff34d878ba58d576129e6f007d661138e8d43bd703c201e7aee382

  • SSDEEP

    3072:ICjy4wEgSRZg6tYJbpVOfraR+wS8WurzkMXEe99:nwhmOCYJb/EraRVS8l59

Malware Config

Extracted

Family

xworm

C2

127.0.0.1:46732

listing-repository.gl.at.ply.gg:46732

Attributes
  • Install_directory

    %Userprofile%

  • install_file

    svchost.exe

Signatures

  • Detect Umbral payload 2 IoCs
  • Detect Xworm Payload 2 IoCs
  • Umbral

    Umbral stealer is an opensource moduler stealer written in C#.

  • Umbral family
  • Xworm

    Xworm is a remote access trojan written in C#.

  • Xworm family
  • Command and Scripting Interpreter: PowerShell 1 TTPs 9 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Checks computer location settings 2 TTPs 2 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Drops startup file 2 IoCs
  • Executes dropped EXE 4 IoCs
  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

  • Detects videocard installed 1 TTPs 1 IoCs

    Uses WMIC.exe to determine videocard installed.

  • Runs ping.exe 1 TTPs 1 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 20 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 42 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

  • Views/modifies file attributes 1 TTPs 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3a8311c1bffc4aa452ac99de43e4c52f33749385cb788ab783e8efd35306ba54.exe
    "C:\Users\Admin\AppData\Local\Temp\3a8311c1bffc4aa452ac99de43e4c52f33749385cb788ab783e8efd35306ba54.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of WriteProcessMemory
    PID:2760
    • C:\Users\Admin\AppData\Local\Temp\FatalityCrack.exe
      "C:\Users\Admin\AppData\Local\Temp\FatalityCrack.exe"
      2⤵
      • Checks computer location settings
      • Drops startup file
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1264
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\FatalityCrack.exe'
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:3352
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'FatalityCrack.exe'
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2056
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\svchost.exe'
        3⤵
        • Command and Scripting Interpreter: PowerShell
        PID:4956
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'svchost.exe'
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:3224
      • C:\Windows\System32\schtasks.exe
        "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "svchost" /tr "C:\Users\Admin\svchost.exe"
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:1072
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\FatalityCrаck.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1656
    • C:\Users\Admin\AppData\Local\Temp\FatalityCrаck.exe
      "C:\Users\Admin\AppData\Local\Temp\FatalityCrаck.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2072
      • C:\Windows\System32\Wbem\wmic.exe
        "wmic.exe" csproduct get uuid
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:2284
      • C:\Windows\SYSTEM32\attrib.exe
        "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\FatalityCrаck.exe"
        3⤵
        • Views/modifies file attributes
        PID:3032
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\FatalityCrаck.exe'
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:4240
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "powershell.exe" Set-MpPreference -DisableIntrusionPreventionSystem $true -DisableIOAVProtection $true -DisableRealtimeMonitoring $true -DisableScriptScanning $true -EnableControlledFolderAccess Disabled -EnableNetworkProtection AuditMode -Force -MAPSReporting Disabled -SubmitSamplesConsent NeverSend && powershell Set-MpPreference -SubmitSamplesConsent 2
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2796
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "powershell.exe" Get-ItemPropertyValue -Path HKCU:SOFTWARE\Roblox\RobloxStudioBrowser\roblox.com -Name .ROBLOSECURITY
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:4660
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "powershell.exe" Get-ItemPropertyValue -Path HKLN:SOFTWARE\Roblox\RobloxStudioBrowser\roblox.com -Name .ROBLOSECURITY
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:4460
      • C:\Windows\System32\Wbem\wmic.exe
        "wmic.exe" os get Caption
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:3612
      • C:\Windows\System32\Wbem\wmic.exe
        "wmic.exe" computersystem get totalphysicalmemory
        3⤵
          PID:4816
        • C:\Windows\System32\Wbem\wmic.exe
          "wmic.exe" csproduct get uuid
          3⤵
            PID:208
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            "powershell.exe" Get-ItemPropertyValue -Path 'HKLM:System\CurrentControlSet\Control\Session Manager\Environment' -Name PROCESSOR_IDENTIFIER
            3⤵
            • Command and Scripting Interpreter: PowerShell
            • Suspicious behavior: EnumeratesProcesses
            PID:116
          • C:\Windows\System32\Wbem\wmic.exe
            "wmic" path win32_VideoController get name
            3⤵
            • Detects videocard installed
            PID:4200
          • C:\Windows\SYSTEM32\cmd.exe
            "cmd.exe" /c ping localhost && del /F /A h "C:\Users\Admin\AppData\Local\Temp\FatalityCrаck.exe" && pause
            3⤵
            • System Network Configuration Discovery: Internet Connection Discovery
            • Suspicious use of WriteProcessMemory
            PID:2684
            • C:\Windows\system32\PING.EXE
              ping localhost
              4⤵
              • System Network Configuration Discovery: Internet Connection Discovery
              • Runs ping.exe
              PID:4300
      • C:\Users\Admin\svchost.exe
        C:\Users\Admin\svchost.exe
        1⤵
        • Executes dropped EXE
        PID:2964
      • C:\Users\Admin\svchost.exe
        C:\Users\Admin\svchost.exe
        1⤵
        • Executes dropped EXE
        PID:1952

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

      • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log

        Filesize

        2KB

        MD5

        d85ba6ff808d9e5444a4b369f5bc2730

        SHA1

        31aa9d96590fff6981b315e0b391b575e4c0804a

        SHA256

        84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f

        SHA512

        8c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249

      • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\svchost.exe.log

        Filesize

        654B

        MD5

        2ff39f6c7249774be85fd60a8f9a245e

        SHA1

        684ff36b31aedc1e587c8496c02722c6698c1c4e

        SHA256

        e1b91642d85d98124a6a31f710e137ab7fd90dec30e74a05ab7fcf3b7887dced

        SHA512

        1d7e8b92ef4afd463d62cfa7e8b9d1799db5bf2a263d3cd7840df2e0a1323d24eb595b5f8eb615c6cb15f9e3a7b4fc99f8dd6a3d34479222e966ec708998aed1

      • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

        Filesize

        1KB

        MD5

        276798eeb29a49dc6e199768bc9c2e71

        SHA1

        5fdc8ccb897ac2df7476fbb07517aca5b7a6205b

        SHA256

        cd0a1056e8f1b6cb5cb328532239d802f4e2aa8f8fcdc0fcb487684bd68e0dcc

        SHA512

        0d34fce64bbefc57d64fa6e03ca886952263d5f24df9c1c4cce6a1e8f5a47a9a21e9820f8d38caa7f7b43a52336ce00b738ea18419aaa7c788b72e04ce19e4f2

      • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

        Filesize

        944B

        MD5

        019a54d1f0d6469396d1d79bcca4d41d

        SHA1

        f7998bbb060a580079940ddc583dfaf798867fa7

        SHA256

        8dc87996c13c37f8c745ae8c49d477ff1b5e578845ed76f0bab90b157e42040a

        SHA512

        e3484f695ac2ebfc0430264e63e49a34f9617ac10112929112031baa6c74f1f406ea5e150fd1eb44ab9e0a8470e1bc7c9d416c93357dda9986a80038f26b21d3

      • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

        Filesize

        944B

        MD5

        e3161f4edbc9b963debe22e29658050b

        SHA1

        45dbf88dadafe5dd1cfee1e987c8a219d3208cdb

        SHA256

        1359d6daeaed2f254b162914203c891b23139cc236a3bf75c2dfcbe26265c84a

        SHA512

        006ffb8f37d1f77f8ee79b22ffa413819f565d62773c632b70985759572121c6ab4743139d16d885f8c0ff9d0e0b136686741728b3e142ee54aea3bb733dffb2

      • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

        Filesize

        944B

        MD5

        e243a38635ff9a06c87c2a61a2200656

        SHA1

        ecd95ed5bf1a9fbe96a8448fc2814a0210fa2afc

        SHA256

        af5782703f3f2d5a29fb313dae6680a64134db26064d4a321a3f23b75f6ca00f

        SHA512

        4418957a1b10eee44cf270c81816ae707352411c4f5ac14b6b61ab537c91480e24e0a0a2c276a6291081b4984c123cf673a45dcedb0ceeef682054ba0fc19cb4

      • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

        Filesize

        944B

        MD5

        d65ebc84c6b0b52901fb46f5e2b83ab5

        SHA1

        d036a0c3eb9e1616d0f7f5ca41171060c13a3095

        SHA256

        d45581b0807a0d04a70ec75e3e4575e73f148e5b4e0d3d325dfbd6400a4bfbd1

        SHA512

        88ac232e7702ebd53788cf8429d266ae367111bfccf4bc9d40ead25b552347521458ca60d320e2775b5d2edcaf8501251cb2db68b38dc000ac50463fb80865be

      • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

        Filesize

        948B

        MD5

        c9b6705519e1eef08f86c4ba5f4286f3

        SHA1

        6c6b179e452ecee2673a1d4fe128f1c06f70577f

        SHA256

        0f9cad44a79126871580e19b01dc3f880c5173b1faaf8b9018d5d1f829714705

        SHA512

        6d8f85a7a8b0b124530f36a157cd0441b5c1eacdc35e274af9fbf0569d03d1d5e468651a5b2425f0215c282ecfa7b1ffeaeeaf18612822f00bd14306d30640c7

      • C:\Users\Admin\AppData\Local\Temp\FatalityCrack.exe

        Filesize

        68KB

        MD5

        39e5154434df5aa11e9f0c65cd4f144f

        SHA1

        834ec83adc2234cbcd70efbb983891cc72259ddd

        SHA256

        3c2fdf6082ef589e943918ff25b7fe96e2e741464711dabab2d31a33e4b1e255

        SHA512

        f5c579a374b0898fdc6b4be7aeea110a18d1138a2d8ab4e9595f341e8258c5a35cd018048dc90ebb640f2ddd5d2be3b26f1caceb92a17124ce0c69719340db0f

      • C:\Users\Admin\AppData\Local\Temp\FatalityCrаck.exe

        Filesize

        231KB

        MD5

        ae57a759dd91e36e11de032c61698600

        SHA1

        f96c5f318f439fabc012f1746a564c383fa41878

        SHA256

        f1ea81371987e6e74a79f623bcc16262efd6151a352d491ba668c706df8d3456

        SHA512

        26112e2bdb0884f6e781ba6e1e8e871aaecfbdc9ee80f156aacc6622c32b1c2069e66311f8ca458e34454c787f05ed463a2548d7a7bc05735d1a6f5bb524d295

      • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_xw04kbij.dsw.ps1

        Filesize

        60B

        MD5

        d17fe0a3f47be24a6453e9ef58c94641

        SHA1

        6ab83620379fc69f80c0242105ddffd7d98d5d9d

        SHA256

        96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

        SHA512

        5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

      • memory/1264-46-0x00007FF901870000-0x00007FF902331000-memory.dmp

        Filesize

        10.8MB

      • memory/1264-164-0x00007FF901870000-0x00007FF902331000-memory.dmp

        Filesize

        10.8MB

      • memory/1264-14-0x0000000000F70000-0x0000000000F88000-memory.dmp

        Filesize

        96KB

      • memory/1264-15-0x00007FF901870000-0x00007FF902331000-memory.dmp

        Filesize

        10.8MB

      • memory/1264-169-0x00007FF901870000-0x00007FF902331000-memory.dmp

        Filesize

        10.8MB

      • memory/1656-31-0x00007FF901870000-0x00007FF902331000-memory.dmp

        Filesize

        10.8MB

      • memory/1656-28-0x000001CEB7990000-0x000001CEB79B2000-memory.dmp

        Filesize

        136KB

      • memory/1656-18-0x00007FF901870000-0x00007FF902331000-memory.dmp

        Filesize

        10.8MB

      • memory/1656-17-0x00007FF901870000-0x00007FF902331000-memory.dmp

        Filesize

        10.8MB

      • memory/1656-16-0x00007FF901870000-0x00007FF902331000-memory.dmp

        Filesize

        10.8MB

      • memory/2072-93-0x0000026D28840000-0x0000026D28890000-memory.dmp

        Filesize

        320KB

      • memory/2072-94-0x0000026D28740000-0x0000026D2875E000-memory.dmp

        Filesize

        120KB

      • memory/2072-132-0x0000026D28770000-0x0000026D2877A000-memory.dmp

        Filesize

        40KB

      • memory/2072-133-0x0000026D287A0000-0x0000026D287B2000-memory.dmp

        Filesize

        72KB

      • memory/2072-92-0x0000026D287C0000-0x0000026D28836000-memory.dmp

        Filesize

        472KB

      • memory/2072-44-0x0000026D0E090000-0x0000026D0E0D0000-memory.dmp

        Filesize

        256KB

      • memory/2760-0-0x00007FF901873000-0x00007FF901875000-memory.dmp

        Filesize

        8KB

      • memory/2760-45-0x00007FF901870000-0x00007FF902331000-memory.dmp

        Filesize

        10.8MB

      • memory/2760-10-0x00007FF901870000-0x00007FF902331000-memory.dmp

        Filesize

        10.8MB

      • memory/2760-1-0x0000000000960000-0x000000000098A000-memory.dmp

        Filesize

        168KB